I haven’t indicated any levels here because the level at which a building or character unlocks is really a minimum level. You need to first complete all the tasks and quests that apply to the buildings that come before it on the list before you can unlock a particular building.

So, on with the walkthrough:

1. Extra, Extra! Place a newspaper dispenser
2. It’s Either This or a Bath Cletus de-louses the young-uns
3. The Best Chimp Drama On TV Homer watches Monkey Trauma Center Marathon (his 24-hour task)
4. The Greatest Joke Ever Heard Without a church, Ned holds emergency Bible studies at home (8 hours)
5. Thrillhouse Part 2 By now, the van Houten House should be finished and Milhouse unlocked. Lisa needs to be free as the build finishes so that she and Milhouse can both shop at the Kwik-E-Mart
6. Chillin’ With The Box Homer watches TV in the Brown House again (you may be asked to make him do this earlier or later depending on what he and the other characters have been doing)
7. Like Father, Like Son Milhouse looks for Puppy Goo-Goo (a cute little remote control car zips around the driveway while he does this – it only takes 10 minutes)
8. The New Evergreen Terrace Part 6 Lisa prompts the building of the Pink House ($3400 and 24 hours – this may happen as soon as she and Milhouse finish their visit to the Kwik-E-Mart)
9. Kwik-E-Shift Apu does a 4-hour shift at the Kwik-E-Mart
10. Mom, I Spilt My Drink In Bed Milhouse hides his wet bed sheets
11. Everyone Always Tells Me to Go Do This Milhouse flies a kite (his 8-hour task)
12. We Do Need Yes Education Part 1 This little play on the famous Pink Floyd song asks you to send Lisa to do next week’s homework (her 24-hour task leading to the building of the school)
13. Strut Your Stuff Ned power walks (4 hours)
14. We Do Need Yes Education Part 2 Lisa prompts the building of Springfield Elementary ($10,500 and 24 hours, unlocking Principal Skinner at the end of the build; keep Lisa free as the build finishes)
15. Back Alley Soufflé Build a dumpster and so that Cletus can dig through garbage
16. Looking for Doves in All the Wrong Places Lisa prompts you to plant trees (if you haven’t done so already) so you can Skinner can go bird-watching (his 24-hour task)
17. The New Evergreen Terrace Part 7 Lisa prompts you to build the White House ($7700 and 24 hours)

The next part will take you from the White House, through Willie’s Shack and the Gulp ‘n’ Blow and all the way up to the Control Building.

Thanks! I looked at the other quest mix-up posts. Hopefully it’ll sort itself out. I just got Bart’s treehouse, so at least the progression in the game didn’t completely stop. I was more worried about the fact that the building doesn’t appear in the list as a locked building, but I’m guessing that’s normal since I don’t think I saw the Treehouse in there either. I’ll let you know when I do get the White House though, to see if there’s a new pattern in the quests…

I am still new to this game and don’t quite understand how you know if you have completed a task for a character. Does the new task go from yellow to white when it’s complete? I have been able to do some tasks that weren’t in yellow and the they showed them in yellow after characters talked to one another and the new task appeared. Like for this part the Vanhouten residence to the white house I haven’t even seen the task to build news stands but I have seen tasks that are after it. I just want to know I am doing the tasks I need to to advance

Hi Brian – sorry it’s taklen me a while to get to this. It got lost in the comment deluge over the end of Whacking day!
In the task book at the side of your screen, you can see a little blue clock showing that the character is in task – when that clock disappears, they’re off task. The tasks appear when prompted by an exclamation mark over a character’s head and ofetn followed by a conversation. Usually tasks follow each other sequentially, but there’s currently a glitch affecting normal task sequence – although it doesn’t untlimately affect game progress. Hope that helps. 🙂

So I’m trying to complete thrillhouse pt. 2 and there seems to be a glitch. I had Lisa and Milhouse go shopping and it even says 1/1 for both of them but it doesn’t say it’s complete. This is keeping me from getting the school and lots of other things. Help!

Of course you deleted and re-downloaded the game; you’ve given everyone short tasks that run for the same amount of time; you’ve logged out and in again from Origin.
I’ll keep looking on this and see what I can find.